Fishing rod holder that attaches to a square tube



FIG. 1 is a perspective view;

FIG. 2 is a front view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof. 

CLAIM The ornamental design for a fishing rod holder that attaches to a square tube, as shown. 